[linux-lvm] relocate on write for snapshot

From: Ming Zhang <mingz ele uri edu>

To: linux-lvm redhat com

Subject: [linux-lvm] relocate on write for snapshot

Date: Fri, 19 Nov 2004 11:39:07 -0500

Hi, I wonder if there are any thought about a relocate on write policy
for snapshot instead of copy on write policy used now?
instead of copy old one to snapshot, overwrite old one with new one, 2
writes and 1 reads. it is possible that write new data to a usused
location directly.
i know later remove a snaphot will be a little trouble, but there must
be some way to get around it.
just a rough thought, any comment?
ming